Soundwalk, the wearable speaker that’s almost ‘tactical’

[CEATEC 209] I stumbled on these strange looking speakers while walking in the Hall 4 of the show floor. They look like some kind of water pack, but you are looking at wearable speakers here. Apparently, the manufacturer is aiming at customers who would rather use speakers than headphones, may be bicyclists, for example. Anyway, I tired them on and I was surprised by the sound quality. It sounds good. The speakers are placed right below the user’s ears (black rectangles on the upper chest), so he/she get a strong beam of sound, while people around hear a much quieter output. So, headphones or speakers? Which one are you?